S
M
T
W
T
F
S
28
93°
73°
29
93°
73°
30
96°
77°
1
95°
74°
2
96°
72°
3
93°
75°
4
91°
71°
5
87°
68°
6
87°
69°
7
88°
71°
8
87°
70°
9
85°
72°
10
88°
71°
11
84°
71°
12
87°
71°
13
88°
67°
14
91°
67°
15
93°
70°
16
90°
75°
17
91°
73°
18
93°
76°
19
90°
75°
20
93°
71°
21
92°
73°
22
83°
67°
23
82°
61°
24
74°
62°
25
N/A
26
96°
77°
27
100°
76°
28
94°
69°
29
91°
65°
30
89°
68°
31
87°
70°
1
84°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in St. Louis
St. Louis's July 2026 forecast shows daily high temperatures ranging from 84° to 100°, with overnight lows between 65° and 77°. The average high for July is 92° with an average low of 71°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in St. Louis. See also: August | September | October.